Finding the Fourth Proportional to 726,492,068.20, 1,089,738,102.30 and 508,388,681.80
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Solution
The fourth proportional to 726,492,068.20, 1,089,738,102.30 and 508,388,681.80 is: 762,583,022.70
Step by Step Solution
- Step 1: Write the proportion equation
726,492,068.20 : 1,089,738,102.30 = 508,388,681.80 : x - Step 2: Convert to fraction form
726,492,068.20/1,089,738,102.30 = 508,388,681.80/x - Step 3: Cross multiply
726,492,068.20x = 1,089,738,102.30 × 508,388,681.80 - Step 4: Simplify right side
726,492,068.20x = 554,010,517,335,530,560 - Step 5: Solve for x
x = 554,010,517,335,530,560/726,492,068.20 - Step 6: Final answer
x = 762,583,022.70
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.